From: Andy Whitcroft <apw@shadowen.org>
To: Robin Holt <holt@sgi.com>
Cc: Dave Hansen <haveblue@us.ibm.com>,
lhms <lhms-devel@lists.sourceforge.net>,
linux-mm <linux-mm@kvack.org>
Subject: Re: [RFC] consistency of zone->zone_start_pfn, spanned_pages
Date: Tue, 17 May 2005 10:50:28 +0100 [thread overview]
Message-ID: <4289BE64.8070605@shadowen.org> (raw)
In-Reply-To: <20050513182446.GA23416@lnx-holt.americas.sgi.com>
Robin Holt wrote:
> do {
> start_pfn = zone->zone_start_pfn;
> spanned_pages = zone->spanned_pages;
> while (unlikely(start_pfn != zone->zone_start_pfn));
Whilst like a seq_lock, without the memory barriers this isn't safe right?
-apw
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next prev parent reply other threads:[~2005-05-17 9:50 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-05-13 16:00 Dave Hansen
2005-05-13 18:24 ` Robin Holt
2005-05-13 18:31 ` Dave Hansen
2005-05-17 9:50 ` Andy Whitcroft [this message]
2005-05-17 10:46 ` Robin Holt
2005-05-17 0:40 ` [Lhms-devel] " KAMEZAWA Hiroyuki
2005-05-17 5:43 ` Yasunori Goto
2005-05-17 12:32 ` Andy Whitcroft
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